30 Apr
2012
30 Apr
'12
11:33 a.m.
On 30 Apr 2012 at 14:14, David Riley wrote:
On Apr 30, 2012, at 2:03 PM, Cameron Kaiser wrote:
I think David is referring to its polled nature.
Yes, I suppose "asymmetric" would have been a better term. It's
not peer-to-peer like serial ports or 1394 are, which is what would
make it nearly useless for kernel debug; that's before you get to
issues of protocol stack, which 1394 gets away with by using DMA on
the controller, which is questionable from a security standpoint but
great for kernel debug.
Or perhaps "half-duplex", although USB 3.0 claims full-duplex
capability.
--Chuck
[...] because USB is
one-way
Since when?